# GRE vs DBFS

The clearest difference is in-app purchases: DBFS at none against GRE's 1. DBFS also leads on update cadence (every 3 weeks vs every 6 months). GRE's advantage is iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. GRE sells 1 in-app purchase, starting at $9.99 per month. DBFS asks for nothing beyond the download.

GRE ships an update every 6 months, DBFS every 3 weeks. The most recent releases landed on September 13, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | GRE | DBFS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (172 ratings)](https://appshunter.io/ios/app/gre/id428247278/reviews)** | — |
| Number of ratings | **172** | — |
| Positive reviews | 77.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 111 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YourTeacher.com](https://appshunter.io/developer/340925628) | [Atulkumar Patel](https://appshunter.io/developer/1853478524) |

## What reviewers say

### GRE

[App page](https://appshunter.io/ios/app/gre/id428247278)

Prepare for the GRE Math placement test with a comprehensive study guide and practice tests. Access detailed explanations and track your progress to ensure success.

**Highlights:** GRE Math study guide, Practice tests, Detailed explanations, Progress tracking, 3-Day free trial

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GRE Math Test Prep Monthly | $9.99 | per month |

**What reviewers like**

- 👍 Clear and concise explanations
- 💡 Well-organized content
- 🚀 Efficient review of material
- 👍 Easy to understand lessons
- 💡 Skip quizzes feature

**What reviewers complain about**

- 🐛 Can't hear audio explanations
- 🐛 App freezes and won't reload
- 🐛 Videos don't play
- 🐛 App crashes frequently
- 🐛 Lacks progress tracking

**Reported bugs**

- Cannot hear audio explanations
- App freezes and won't reload
- Videos do not play
- App crashes frequently
- Restore purchases not working

**Requested features**

- Progress tracking for lessons
- Offline access for videos
- Ability to download lesson videos
- Option to email worksheets as PDF
- Subtitles for deaf/hard of hearing users


### DBFS

[App page](https://appshunter.io/ios/app/dbfs/id6760348459)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GRE free?

GRE is free to download, with in-app purchases available.

### Is DBFS free?

DBFS is free to download, with no in-app purchases.

### Do GRE or DBFS have ads?

Neither GRE nor DBFS shows ads.

### Which is updated more often, GRE or DBFS?

GRE ships an update every 6 months, and DBFS every 3 weeks. Most recently, GRE was updated on September 13, 2026 and DBFS on September 15, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*